July 2009 Doc ID 15944 Rev 1 1/6
1
L99PM60S
Power management system IC
Features
■One 5 V low-drop voltage regulators (100 mA,
continuous mode)
■Low standby current: VBAT-standby, 7 µA;
V1-standby, 45 µA
■Window watchdog and fail-safe functionality
■Configurable fail safe output
■Programmable reset threshold (4.6 V, 3.5 V)
■VS monitoring / temperature measurement
■LIN 2.1 compliant (SAEJ2602 compatible)
transceiver
■High-speed LIN Flash mode up to 100 kbit/s
■ST SPI interface for mode control and
diagnostic
■2 high-side drivers for e.g. LED or HALL
(RDSon,typ = 7 Ω )
■2 relay drivers ( RDSon,typ = 2 Ω )
■Outputs are short-circuit protected
■Direct drive feature for high-sides
■Temperature warning and thermal shutdown
Applications
■Automotive ECU such as door zone and body
control modules.
Description
The L99PM60S is a power management system
IC containing one low-drop regulator direct drive
feature for high-side drivers and LIN 2.1 compliant
SAEJ602 transceiver.
The integrated standard serial peripheral interface
(SPI) controls all L99PM60S operation modes
and provides driver diagnostic functions.
PowerSSO-16 SO-16
Table 1. Device summary
Package
Order codes
Tube Tape and reel
SO-16 L99PM60S L99PM60STR
PowerSSO-16 L99PM60J L99PM60JTR
www.st.com
Contents L99PM60S
2/6 Doc ID 15944 Rev 1
Contents
1 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Pin definitions and functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
L99PM60S Block diagram
Doc ID 15944 Rev 1 3/6
1 Block diagram
Figure 1. Block diagram
1. LIN 2.1 compliant
DI
Vreg 1
5V / 100 mA
High Side
7 O
SPI
LOGIC
Window
Watchdog
Vs
CSN
CLK
DO
OUT2
OUT1 / FSO
Low Side
2 O
Output Clamp
V1
LIN 2.1 (1)
SAEJ 2602 LIN
RxD / NINT
TxD
NReset
GND
REL1
REL2
Direct
Drive
DRV / VSM / TMP
Vs
Monitoring
Temp Prewarning
& Shutdown
Vs Undervoltage -
Overvoltage -
Shutdown
Temp
Monitoring
Low Side
2 O
Output Clamp
High Side
7 O
Vreg 1
Monitor
2 Ω
2 Ω
7 Ω
7 Ω
Pin definitions and functions L99PM60S
4/6 Doc ID 15944 Rev 1
2 Pin definitions and functions
Figure 2. Pins configuration
Table 2. Pins definitions and functions
Pin Symbol Function
1 GND Ground
2 NRESET NRESET output to microcontroller; internal pull-up of typ. 100 KΩ
(reset state = low)
3 DO SPI: serial data output
4 DI SPI: serial data input
5V
1Voltage regulator 1 output: 5 V supply e.g. microcontroller
6 CLK SPI: serial clock input
7 RXD/NINT Receiver output of the LIN 2.1 transceiver or interrupt:
8 DRV/VSM/TMP Direct drive for high-side drivers OUT1/OUT2; VS and temperature
monitoring
9 CSN SPI: chip select not input
10 OUT2 High-side drivers (7 Ω, typ.) : to supply e.g. LED's, HALL sensors,
external contacts
11 OUT1/FSO High-side driver (7 Ω, typ.) : to supply e.g. LED's, HALL sensors, external
contacts. Default configuration is Fail Safe output.
12 TXD Transmitter input of the LIN 2.1 transceiver
13 VSPower supply voltage
14 REL1 Low-side driver (2 Ω typ.): e.g. relay
15 REL2 Low-side driver (2 Ω typ.): e.g. relay
16 LIN LIN bus line
SO -16
GND
NRESET
DO
DI
V1
CLK
RXD/NINT
DRV/VSM/TMP
LIN
REL2
REL1
Vs
TXD
OUT1/FSO
OUT2
CSN
PowerSSO -16
or
L99PM60S Revision history
Doc ID 15944 Rev 1 5/6
3 Revision history
Table 3. Document revision history
Date Revision Description of changes
01-Jul-2009 1 Initial release.
L99PM60S
6/6 Doc ID 15944 Rev 1
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